Latch



No Model.) v

C. W. BULLARD.

. LATCH.

No. 352,515. Patented Nov. 16, 1886.

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UNITED STATES.

PATENT Grinch.

GHARLES IV. BULLARD, OF CHICAGO, ILLINOIS.

LATCH.

QPECIFICATION forming part of Letters Patent No. 352,515, dated November 16,1886.

Application filed Octobc17, 1886.

To aZZ whom it may concern.-

Be it known that I, CHARLES W. BULLARD, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Latches; and I do hereby declare the following to be afull, clear, and exact description of the same, reference being had to the accompanying drawings, forminga part of this specification, in which- Figure l is a side elevation of a latch with parts of the case broken away to show the internal arrangement of parts; Fig. 2, a horizontal section of the same, the knob-spindles being shown-in elevation; Fig. 3, adetail perspective view of the inner end of the knobspindle; Fig. 4, adetailview of thelatch-case, showing one form of the improved spindleattaching orifice; Fig. 5, a detail view, similar to Fig. l, of a modified construction of parts; and Fig. 6 a detail view of the latch-case, showing a modified form of the spindle-attaching orifice.

Similar letters of reference indicate like parts in the several views.

This invention relates to that class of reversible door-latches in which the yoke, or similar operative member of the spring latchbolt, is directly operated by suitable cam projections on the knob-spindle.

The present improvement has for its object to provideastrong, simple, and efficient means for attaching the knob-spindles to the latchcase without the addition of any separate attaching parts.

To enable others skilled in the art to which .myjnvention appertains-to make and use the width to be engaged by both, so that a move- Scrial No. 215,628. (No model.)

ment of either of said knob-shanks will operate such yoke or lever to retract the springbolt.

In the present improvement the main feature of novelty consists, in connection with substantially the above arrangement of parts, of means for attaching the knob-spindles to the latch-case. In this F is an opening or orifice in each side of the latch-case A, of a shape adapted to admit of theintroduction or passage 'of the end of the knob-shank with its cam projections or lugs D into the interior of the case, and arranged in ahorizontal plane a suitable distance forward, as indicated in Fig. 5, or to the rear, as indicated in Fig. 1, as desired, of the operating-axis of the knobspindle when in use. F is a horizontal continuation of the vertically-elongated opening or orifice F, which extends to and has its end concentric with the operating-axis of the knobshank in thelatchcase, andis madeof a diameter equal to that of the knob-shank outside of its cam projections D.

Themode of attachment with the above construction and arrangement of parts consists, simply, in introdnci ng end wise the-logged ends of the knob shank into the interior of the case through the main orifice F, and then movwhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a door-latch, and with its rose, or combined rose and escutcheon, of the latch-ease provided with an enlarged orifice of sufficient capacity to admit thelugged end of the knob-shank, and having a contracted horizontal continuation, F, and the knobshank E. provided with a projecting cam or lugs, D, theparts being adapted to engage 10 axis of the knob-spindle in use, and the knobshank E, having projecting cam or lugs D, the parts being adapted to engage together in manner essentially as herein described.

' In testimony whereof witness my hand this 2d day of October, 1886.

CHARLES W. BULLARD.

.In presence of- ROBERT BURNS, JAMES H. GORMLEY. 

